Lock



June 3, 194 11- n. L. WEBB Locx Filed s p't. 29, 1938 V///////// JV/ /fl/ EMP?!) IN V EN TOR. DAN/El Z W558 A TTORNEYS.

Patented June 3, 1941 OFi-IC 8 Claims.

The present invention relates to locks, the components of which are permanently mounted upon a door, and more particularly upon a sliding door.

The main object of this invention is to provide a novel and improved lock, particularly for sliding doors of the type used on railroad box cars.

Another object of the invention is to provide a lock mechanism which can be produced and maintained in operating condition at a minimum cost.

Other objects of the invention will appear in the course of the following description, and the invention resides in the novel features and combination of parts which will be particularly pointed out in the appended claims.

This invention is capable of numerous forms and variations without departing from the essential features herein disclosed. It is thereto-re intended and desired that the embodiment shown herein be deemed illustrative and not restrictive, and that the patent shall cover Whatever features of patentable novelty exists in the invention disclosed; reference being had to the appended claims rather than to the specific description herein to indicate the scope of the invention.

In the drawing forming part of this application, similar characters :of reference indicate corresponding parts in all the views.

Figure 1 is a fragmentary view of a railroad box car showing the preferred location of the lock;

Figure 2 is a sectional view through a door showing the lock in the unlocked position;

Figure 3 is a view taken on line 33 of Figure 1;

Figure 4 is a view taken on line 4-4 of Figure 1;

Figure 5 is a front View of the lock and lock plate;

Figure 6 is a view of the lock with the keeper plate in position permitting release of the lock from locked position; and

Figure 7 is a side view of the invention showing lock in locked position.

The usual sliding door securing means have in the past generally been secured at or near the lower part of the box car door. This position of the lock enables it to be easily reached by a person standing on the ground. Due to the ease with which the lock could be reached from the ground, many railroad cars have been robbed of their contents. To overcome this my lock has been produced and it is preferred that it be located sufliciently high on the car door that a person standing :on the ground cannot reach the lock.

Railroad box cars are generally placed alongside a platform for unloading and when in this position the lock can easily be reached for unlocking.

Referring to th drawing in detail, I0 indicates the usual box car on which are provided sliding doors I l. The usual door securing means is indicated as at l2, it being understood that the securing means l2 may and generally will be dispensed with when my lock is employed.

My new lock I4 is preferablyloeated on the sliding door in a position such as is shown in Figur 1, The lock works just as effectively when located lower on the door, but in such location is much more easily reached by a person standing on the ground.

A suitable plate member It is provided and is adapted to be secured to the car door by any approved securing means passing through openings ll. Fastened by means I8 is a plate member which embodies a bolt containing member 20-2 I, When the locking bolt is in the inactive position shown in Figure 5 the bolt end 24 extends into opening 23.

Hingedly connected at 21 is plate cover 26 which is adapted to swing down against member 19. There are complementary openings 25 and 2B in cover member 26, and member l9. Openings 28 formed in members l9 and 26 are for receiving the usual seal and openings 25 formed in these members are for receiving a suitable lock for holding the cover closed.

After the door I l is closed, member 26 is swung to position shown in Figure 6. The bolt end 24 is forced into the position shown in Figure 4 which results in bolt end 22 being brought against the car side [5. The member 26 is now permitted to close against bolt end 24 and the door is locked against opening.

To unlock the door, member 26 is opened whereupon the heavier bolt end 22 causes the bolt to automatically assume the position shown in Figure 6.

The plate member 16 may be eliminated and the lock mechanism be connected directly to the door. An opening must be cut in the door H for the bolt end 22 to pass through.

What I claim is:

1. In combination with a sliding door a locking mechanism located near the rear edge thereof and above the middle of the door, said lock comprising a plate member, a bolt supporting groove in said plate member, a bolt in said groove, the

ends of the bolt lying in substantially parallel planes, one end of said bolt being accessible from the exterior of the door and the other end of the bolt extending inwardly beyond the inner surface of the door when in locked position and bearing against the door frame and a hinged member for normally covering one end of said bolt.

2. A look for sliding doors including a plate secured near the rear edge of the door, a bolt groove in said plate, a bolt in said groove, said bolt being substantially Z-shaped, one end of said bolt lying in a plane substantially parallel with the door in the unlocked position and extending substantially perpendicular to the door in said locked position, the other end of the bolt being accessible from the exterior of the door, and a plate member for normally covering the bolt end accessible from the exterior.

3. In a sliding freight car door, locking means secured near the rear edge of the door comprising a bolt-supporting member, a substantially horizontally positioned boltrotatably mounted in said supporting member, the ends of said bolt lying at an angle to the bolt body, the inner end of said bolt lying in a plane substantially parallel with the door when in unlocked position, said bolt end extending substantially perpendicular to the door when in looking position, the

outer end of said bolt being accessible from the exterior of the door.

4. In a sliding vehicle door, a locking device secured near the rear edge of the door and comprising a substantially horizontally mounted bolt, the inner end of said bolt extending inwardly of the inner surface of the door when in locking position and lying substantially parallel to the door when in unlocked position, the outer end of said bolt being accessible from the exterior of the door and being movable through an arc of less than 180 to project said inner end into locking position.

5. A lock for sliding vehicle doors, said lock being secured near the rear edge of a sliding door and comprising a one-piece bolt with the main body portion extending in a substantially horizontal plane substantially parallel to said door, the ends of said bolt extending substantially at right angles to the bolt body, the outer end being accessible from the exterior of the door, the inner end extending into the vehicle and bearing against the door frame when in looking position, and a supporting member rotatably supporting said bolt.

6. In a sliding door, locking mechanism located adjacent to the rear edge of said door, said looking mechanism comprising a lock supporting member secured to the door, a lock rotatably supported by said member, said lock having a body and angularly related ends, one of said ends being accessible from the exterior of the door, the other of said ends projecting inwardly beyond the inner face of the door when in looking position to prevent sliding movement of said door.

7. Locking means for sliding car doors comprising a lock support secured to the door adjacent to the rear edge thereof, a look rotatably mounted on said support, said lock having a body, a locking member extending from said locl: body and an actuating member extending from said lock body, said actuating member being accessible from the outside of the door, said locking member projecting inwardly beyond the inner face of the door when in looking position to prevent sliding movemnt of the door.

8. A look for sliding doors secured to the doors adjacent the rear edge thereof, said lock comprising a rotatably mounted body and ends ex tending angularly from said body, one of said ends lying outwardly of the inner face of the door when retracted and substantially perpendicular to the door when projected, the other of said ends being accessible from the exterior of the door and means engageable with said latter end for maintaining said first mentioned end in projected position.

DANIEL L. WEBB. 

